US6973012B2 - Information recording/reproducing apparatus for editing data on a recording medium - Google Patents

Information recording/reproducing apparatus for editing data on a recording medium Download PDF

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Publication number
US6973012B2
US6973012B2 US09/987,058 US98705801A US6973012B2 US 6973012 B2 US6973012 B2 US 6973012B2 US 98705801 A US98705801 A US 98705801A US 6973012 B2 US6973012 B2 US 6973012B2
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Prior art keywords
information
unit
recording
recording medium
reproducing
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US09/987,058
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English (en)
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US20020051408A1 (en
Inventor
Tadashi Kondo
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Pioneer Corp
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Pioneer Corp
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/216—Rewritable discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/218—Write-once discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • G11B2220/2575—DVD-RAMs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal

Definitions

  • the present invention relates to a technical art of an information recording/reproducing apparatus for recording and reproducing information on and from a recording medium. More particularly, the present invention relates to an information recording/reproducing apparatus capable of reproducing the recorded information, which has been recorded on the recording medium, in accordance with a reproducing procedure designated by a user.
  • an optical recording medium capable of recording a large quantity of digital video information and easily accessed in a random order attracts attention.
  • a DVD-R (DVD Recordable) serving as a recordable optical disk capable of additionally recording information
  • a DVD-RW (DVD Re-recordable) and a DVD-RAM (DVD Re-writable) or the like serving as a rewritable optical disk capable of rewriting information
  • video data is recorded after being compressed and coded by a MPEG (Moving Picture Expert Group) system which is typical system as a compression and extension system for moving picture.
  • MPEG Motion Picture Expert Group
  • variable-length-coding differentiates between pictures, which a user desires to code and a reference picture, which is present prior to the picture in time. It also differentiates between moving vectors in units of a macro block.
  • a recording/reproducing apparatus for the use of these recording media generates original reproduction control information for reproducing the recorded information in an order that the recording information have been recorded on the recording medium, and records the original reproduction control information on the recording medium. Then, the recording/reproducing apparatus reproduces the recorded information on the basis of this original reproduction control information in an order that the recording information have been recorded on the recording medium.
  • this recording/reproducing apparatus can generate user-defined reproducing information (called “play list”) for reproducing the recorded information in accordance with the reproducing procedure designated by the user, and records it on the recording medium. Further, this recording/reproducing apparatus is capable of reproducing the recorded information, which have been recorded on the recording medium, in accordance with this play list.
  • a movie program broadcasted on television is once recorded, and thereafter this movie program is reproduced with unnecessary commercial film portions being skipped according to the designations by the user.
  • a play list for reproducing the movie itself, without commercial film portions is recorded on the recording medium. Thereafter, when this play list is designated by the user, it is possible to only reproduce the movie itself without the commercial film portions.
  • the user in the case of increasing unrecorded area of the recording medium, in the first instance, the user tries to erase unnecessary portions of the recorded information, which is not reproduced from the recording medium by any one play lists.
  • the user has to edit the above described original reproduction control information and erase the unnecessary portions of the recorded information recorded on the recording medium.
  • the present invention has been made taking the foregoing problems into consideration, and its object is to provide an information recording/reproducing apparatus capable of accurately and quickly erasing the recorded information that is not reproduced from the recording medium in accordance with the reproducing procedure designated by the user.
  • an information recording/reproducing apparatus for recording information on a recording medium and for reproducing recorded information from the recording medium in accordance with a reproducing procedure designated by a user, including: a detecting unit for detecting an unnecessary portion of the recorded information which is not to be reproduced according to any one the reproducing procedure; and an erasing unit for erasing the recorded information corresponding to the unnecessary portion.
  • user can record information on a recording medium.
  • the user can create the reproducing procedure of the recorded information and records it on the recording medium.
  • the detecting unit detects the unnecessary portion of the recorded information of the recorded information, which is not to be reproduced according to any one the reproducing procedure, and the erasing unit erases the recorded information corresponding to the unnecessary portion.
  • the recorded information which is not to be reproduced may be erased, and the storage capacity of the recording medium can be efficiently used.
  • the detecting unit may include a first unit for detecting necessary portion of the recorded information which is to be reproduced by the reproducing procedure for all of the reproducing procedure; and a second unit for determining the portion of the recorded information other than the necessary portion detected by the first unit as the unnecessary portion.
  • the apparatus may further include a control unit for controlling the detecting unit and the erasing unit to operate when the user finishes editing the reproducing procedure.
  • the apparatus may further include a control unit for controlling the detecting unit and the erasing unit to operate when an instruction to erase the unnecessary portion is inputted by the user.
  • the apparatus may further include a control unit for controlling the detecting unit and the erasing unit to operate when an instruction to eject the recording medium from the apparatus is inputted by the user.
  • a computer readable information recording medium storing a control program readable by a computer apparatus and making the computer apparatus to function as an information recording/reproducing apparatus for recording information on a recording medium and for reproducing recorded information from the recording medium in accordance with a reproducing procedure designated by a user, including: detecting unit for detecting an unnecessary portion of the recorded information which is not to be reproduced according to any one the reproducing procedure; and an erasing unit for erasing the recorded information corresponding to the unnecessary portion.
  • the computer apparatus by executing the computer program by the computer apparatus, for example, a terminal device or a personal computer, the computer apparatus may function as the information recording/reproducing apparatus described above.
  • FIG. 1 is a block diagram of an information recording/reproducing apparatus according to the present invention.
  • FIG. 2 is a diagram showing a recording format
  • FIG. 3 is a diagram showing a hierarchical constitution of a video manager
  • FIG. 4 is a flow chart of an operation for setting an automatic edit mode
  • FIG. 5 is a diagram showing an example of play list screen
  • FIG. 6 is a diagram schematically showing a relationship between video information and play list
  • FIG. 7 is a diagram showing an example to edit the reproducing procedure by using a play list- 1 and a play list- 2 ;
  • FIG. 8 is a flow chart showing an automatic edit mode operation program
  • FIG. 9 is a flow chart showing a map producing operation program
  • FIG. 10 is a flow chart showing a table producing operational program
  • FIGS. 11A to 11F are diagrams showing manners to compare a table with a map in time
  • FIG. 12 is a diagram showing unnecessary portions of the original reproduction control information.
  • FIG. 13 is a schematic view showing an application of the present invention.
  • FIG. 1 is a block diagram showing a substantial part of the information recording/reproducing apparatus 50 according to the present invention
  • FIG. 2 is a diagram showing a recording format (a physical recording format) of an optical disk 1 which is used by the information recording/reproducing apparatus 50
  • FIG. 3 is a diagram showing a hierarchical constitution of a video manager (VMG) in the recording format shown in FIG. 2 .
  • VMG video manager
  • the optical disk 1 has a lead-in area LI at its innermost periphery, and has a lead-out area LO at its outermost periphery.
  • the video information is divided into a plurality of video title sets (VTS# 1 to VTS#n) having ID (identification) numbers, respectively, between the lead-in area LI and the lead-out area LO.
  • the VTS is a set of associated titles having the same attributes such as audio, the same number of streams of a sub-picture, the same specification and the same correspondence language or the like (i.e., a piece which a producer of the movie or the like is planning to serve to an audience). More specifically, for example, it is possible to record the titles having different languages for the same one movie, and further it is possible to record a theater version and a special version of the same movie as different titles, respectively.
  • the video manager (VMG) is recorded.
  • the VMG is placed in front of the VTS# 1 .
  • the VMG is not always placed in front of the VTS# 1 depending on a file system.
  • the information recorded in the VMG includes the information in association with the entirety of the video information and the audio information to be recorded in the present optical disk 1 such as a menu indicating names of respective titles, the information for preventing the illegal copy or an access table for accessing respective titles or the like.
  • the user-defined reproduction control information in association with the reproducing procedure according to the present invention is recorded in the VMG.
  • a plurality of video objects (VOB) having the ID numbers, respectively, are recorded with the control data at its head portion.
  • a portion which is configured by a plurality of VOB, is referred to as an object set (VOBS).
  • VOBS object set
  • the present substantial portion is defined as the VOBS.
  • the information such as program chain information (PGCI) or the like in association with a program chain serving as a logical segment including a combination of a plurality of cells is recorded.
  • PGCI program chain information
  • the substantial portion of the video information and the music information are recorded in addition to the control information.
  • the VOB is structured by a plurality of cells having the ID numbers, respectively.
  • the cells are structured by a plurality of video object units (VOBU) having the ID numbers, respectively.
  • the VOBU includes the information unit including the video information and the sub-picture information (i.e., the information of a sub-picture of a caption or the like in the movie), respectively.
  • One VOB unit is constituted by a video pack (V — PCK) having the video information, an audio pack (A — PCK) having the audio information and a sub-picture pack (SP — PCK) having the sub-picture information.
  • the video data included in the VOBU is constituted by one or more GOP.
  • the above described VMG includes real time recording video manager information (RTR — VMGI), a movie AV file information table (M — AVFIT), a still picture AV file information table (S — AVFIT), original program chain information (ORG — PGCI), a user-defined program chain information table (UD — PGCIT), a text data manager (TXTDT — MG) and a manufacture information table (MNFIT).
  • RTR — VMGI real time recording video manager information
  • M AVFIT movie AV file information table
  • S — AVFIT still picture AV file information table
  • ORG — PGCI original program chain information
  • UD — PGCIT user-defined program chain information table
  • TXTDT — MG text data manager
  • MNFIT manufacture information table
  • the above-described ORG — PGCI includes a cell information table (CIT), and this CIT includes a plurality of cell information (CI# 1 to CI#j). Each CI includes the cell general information (C — GI) and a plurality of the cell entry information (C — EPI# 1 to C — EPI#k). A start time and an end time of respective cells of the original reproduction control information according to the present invention are recorded in this C — GI.
  • the above described UD — PGCIT includes a plurality of user-defined program chain information (UD — PGCI) as same as the ORG — PGCI. A start time and an end time of respective cells of the user-defined reproduction control information according to the present invention are recorded in the C — GI, which is provided below the UD — PGCI.
  • the information recording/reproducing apparatus 50 is constituted by a pickup 2 , a modulation unit 3 , a formatter 4 , an encoder 5 , a controller 6 provided with a navigation information generating unit 7 , a memory 8 , a demodulation unit 9 , a decoder 10 , a servo circuit 11 , a spindle motor 12 and an operational unit 13 or the like.
  • the spindle motor 12 rotationally drives the optical disk 1 at a predetermined linear speed on the basis of a spindle control signal Sss from the servo circuit 11 .
  • the video information Sr to be recorded on the optical disk 1 is inputted to the encoder 5 from outside.
  • the encoder 5 applies the predetermined coding processing (specifically, the compression coding processing according to a MPEG system or the like) to the video information Sr on the basis of a control signal Sce from the controller 6 to output a coding signal Sre to the formatter 4 .
  • the formatter 4 converts the format of the video information Sr on the basis of a control signal Scf from the controller 6 so that the format of the video information Sr has the physical format shown in FIG. 2 , and then the formatter 4 supplies the formatted signal Sf to the modulation unit 3 .
  • the formatter 4 converts the format of a navigation information signal Snd from the navigation information generating unit 7 to be described later so that the format of the navigation information signal Snd has the physical format shown in FIG. 2 , and then the formatter 4 supplies the formated signal Sf to the modulation unit 3 .
  • the modulation unit 3 performs the predetermined modulating processing (specifically, the error correction, the interleaving, the scramble processing and the 8–10 modulation or the like) to the formatted signal Sf and outputs a modulation signal Sfe to the pickup 2 .
  • the navigation information generating unit 7 generates the information to be recorded in the above described VMG and generates the original reproduction control information and the user-defined reproduction control information according to the present invention.
  • the pick up 2 drives a light source such as a semiconductor laser or the like (not shown) in the pickup 2 on the basis of the modulation signal Sfe outputted from the modulation unit 3 , generates an optical beam such as a laser beam or the like, irradiates the generated optical beam to a surface for recording the information and forms phase-change pits corresponding to the present modulation signal Sfe, so that the pickup 2 records the video information Sre and the navigation information signal Snd on the optical disk 1 .
  • the optical disk 1 is rotated at a predetermined linear speed by the spindle motor 12 driven on the basis of the spindle control signal Sss.
  • the pickup 2 irradiates an optical beam B for reproducing the video information with a predetermined density on the optical disk 1 , and then the pickup 2 outputs a detecting signal Spp, which is generated in association with the video information on the basis of the reflected light, to the demodulation unit 9 .
  • the demodulation unit 9 applies the predetermined demodulation processing to the detecting signal Spp and outputs the navigation information signal Sud to the controller 6 and a demodulating signal Spd in association with the video information to the decoder 10 .
  • the decoder 10 applies the decoding processing to the demodulating signal Spd on the basis of the control signal Scd from the controller 6 and outputs the decoded demodulating signal Spd to an external appliance (not illustrated) such as a TV monitor or the like as an output signal Sout.
  • the information recording/reproducing apparatus 50 has an automatic edit mode function to erase an unnecessary portion of the video information, which is not used in any one of the plural play lists.
  • an automatic edit mode function to erase an unnecessary portion of the video information, which is not used in any one of the plural play lists.
  • a flag indicating whether or not the automatic edit mode should be allowed is recorded, in advance, on the optical disk 1 to which the automatic edit mode is applied.
  • the controller 6 starts various serve control and prepares recording or reproduction with respect to the optical disk 1 . Then, the controller 6 determines whether or not the automatic selection in the automatic edit mode is set by the user in step S 2 . In the case that the automatic edit mode is not set (step S 2 ; NO), after the mode is changed to a normal mode such that the original reproduction control information is not automatically edited in the step S 9 , the control on the basis of the present operational flow is terminated. On the other hand, in the case that the automatic selection is set, the controller 6 determines whether the present optical disk 1 includes an optical disk 1 in which the information has not been recorded yet in the step S 3 .
  • Such a decision is carried out by checking whether the data recorded in the VMG can be read or by trying to reproduce the VMG of the optical disk 1 . If the data in the VMG cannot be read out, this optical disk 1 is determined as an unrecorded optical disk in which the information has not been recorded yet.
  • step S 3 the controller 6 records a flag which allows the automatic edit mode in the step S 8 in a blank area of the VMG of the optical disk 1 . Then, the control based on the present operation flow is terminated.
  • the controller 6 determines whether or not the optical disk 1 is an optical disk with its mode being set to the automatic edit mode in the step S 4 . This decision is carried out by observing whether the flag recorded in the above described VMG is set or not.
  • the controller 6 terminates the control based on the present operational flow.
  • the controller 6 confirms in the step S 7 whether the original reproduction control information recorded in the optical disk 1 accords with the original reproduction control information automatically edited in the step S 5 .
  • step S 6 NO
  • the controller 6 terminates the control based on the present operational flow.
  • the controller 6 changes the mode into the automatic edit mode and terminates the control based on the present operational flow.
  • FIG. 5 is a diagram showing a play list screen referred to as disk navigation.
  • FIG. 6 is a diagram schematically showing a relationship between the video information recorded on the optical disk 1 and the play list.
  • the reference numeral 100 schematically shows the recording positions of the video information- 1 and the video information- 2 , which are recorded in the optical disk 1 .
  • the reference numeral 100 shows the time length of the video information in a bar.
  • the reference numeral 101 shows the original reproduction control information, which indicates a start time and an end time of the video information- 1 and the video information- 2 .
  • the reference numeral 102 shows a state that the user performs the recording operation of the video information and the user registers the user-defined reproduction control information indicating that the start time and the end time of the video information- 1 in the play list- 1 1 .
  • the reference numeral 103 shows a state that the user registers the user-defined reproduction control information indicating that the start time and the end time of the video information- 2 in the play list- 2 .
  • the information recording/reproducing apparatus 50 is capable of outputting a play list screen referred to as a “disk navigation”, since it makes the detection of the video information recorded in the optical disk 1 and the selection upon editing easier.
  • the play list screen displays the video information recorded on the optical disk 1 by six still pictures on one screen as shown in FIG. 5 .
  • the six still pictures are the title pictures of the respective play lists. If the user performs the recording operation of the video information, the information recording/reproducing apparatus 50 stores a first picture of this video information in the play list screen as a still picture. In the case that the user performs the title register operation, the user registers the titles with linking (i.e., associated) the titles to the above described still picture.
  • the information recording/reproducing apparatus 50 records the video information- 1 in the VTS of the optical disk 1 . Then, after recording the video information- 1 in the VTS of the optical disk 1 , the navigation information generating unit 7 generates the original reproduction control information (ORG — PGCI) indicating the start time and the end time of the video information- 1 and the user-defined reproduction control information (UD — PGCI # 1 ) indicating the start time and the end time of the video information- 1 to record them in the VMG. Additionally, the navigation information generating unit 7 registers the first picture of the video information- 1 in a play list- 1 of the play list screen.
  • ORG — PGCI original reproduction control information
  • UD — PGCI # 1 user-defined reproduction control information
  • the information recording/reproducing apparatus 50 records the video information- 2 in the VTS of the optical disk 1 when the user performs the recording operation of the video information- 2 .
  • the information recording/reproducing apparatus 50 adds the information indicating the start time and the end time of the video information- 2 to the original reproduction control information (ORG — PGCI), and the information recording/reproducing apparatus 50 generates the user-defined reproduction control information (UD — PGCI # 2 ) indicating the start time and the end time of the video information- 2 to record them in the VMG. Further, the information recording/reproducing apparatus 50 registers the first picture of the video information- 2 in a play list- 2 of the play list screen.
  • the information recording/reproducing apparatus 50 prohibits the edit of the original reproduction control information by the user. If the recording operation is performed, the information recording/reproducing apparatus 50 automatically produces a play list with respect to the original reproduction control information.
  • FIG. 7 shows an example in which the reproducing procedure is edited by using the play list- 1 and the play list- 2 .
  • the information recording/reproducing apparatus 50 processes the video information of respective play lists by the unit of a plurality of cells, which are configured by the VOBU. For example, if the user selects a (A–B) segment of the video information- 1 by the edit operation of the play list- 1 , the information recording/reproducing apparatus 50 stores a cell start time (A) and an end time (B) as a first cell information (CI# 1 ) of a first user-defined reproduction control information (UD — PGCI # 1 ).
  • A cell start time
  • B end time
  • the stored cell start time (A) and the end time (B) as the first cell information (CI# 1 ) of the first user-defined reproduction control information (UD — PGCI # 1 ) are represented by a cell- 1 (A–B).
  • the reference numerals A to H represent a time length of the video information. It is assumed that a relationship that A ⁇ G ⁇ B ⁇ H ⁇ E ⁇ F stands. For example, a relationship A ⁇ B in time is established between the start time (A) and the end time (B) of the cell 1 (A–B).
  • the information recording/reproducing apparatus 50 stores a cell start time (C) and an end time (D) as a second cell information (CI# 2 ) of a first user-defined reproduction control information (UD — PGCI # 1 ).
  • the stored cell start time (C) and the end time (D) as the first cell information (CI# 2 ) of the first user-defined reproduction control information (UD — PGCI # 1 ) are represented by a cell- 2 (C–D).
  • the information recording/reproducing apparatus 50 stores a cell start time (E) and an end time (F) as a third cell information (CI# 3 ) of a first user-defined reproduction control information (UD — PGCI # 1 ).
  • the stored cell start time (E) and the end time (F) as the third cell information (CI# 3 ) of the first user-defined reproduction control information (UD — PGCI # 1 ) are represented by a cell- 3 (E–F).
  • the information recording/reproducing apparatus 50 records the first user-defined reproduction control information (UD — PGCI # 1 ) having these first to third cell information (CI# 1 to CI# 3 ) in the VMG.
  • the information recording/reproducing apparatus 50 stores a cell start time (G) and an end time (H) as a first cell information (CI# 1 ) of a second user-defined reproduction control information (UD — PGCI # 2 ) in the optical disk 1 .
  • the stored cell start time (G) and the end time (H) as the first cell information (CI# 1 ) of the second user-defined reproduction control information (UD — PGCI # 2 ) are represented by a cell- 1 (G–H).
  • the information recording/reproducing apparatus 50 records the second user-defined reproduction control information (UD — PGCI # 1 ) having the first cell information (CI# 1 ) in the VMG.
  • FIG. 8 is an automatic edit mode operational flowchart showing an automatic edit mode operational program of the information recording/reproducing apparatus 50
  • FIG. 9 is a map producing operational flowchart showing a map producing operational program to be processed upon running the automatic edit program
  • FIG. 10 is a table producing operational flowchart for showing a table producing operational program to be processed upon running the automatic edit mode operational program. The map producing operational program and the table producing operational program are executed as a sub-program of the automatic edit mode operational program.
  • the automatic edit mode operational program is executed on the basis of the automatic edit mode operational flow chart shown in FIG. 8 .
  • the controller 6 of the information recording/reproducing apparatus 50 waits for the termination of the edit operation by the user in step S 10 . This decision is carried out by detecting whether an edition terminating button (not illustrated) is operated by the user or not. If the edit operation is terminated (step S 10 : YES), the controller 6 executes the map producing operational program shown in FIG. 9 in step S 11 .
  • the controller 6 sets a value of a MAP number [M] to “0” in step S 20 , and starts the production of the map from the cell- 1 in step S 21 .
  • the controller 6 registers the information of the VOB, which is structured by the cell, in a MAP [0] in step S 22 .
  • a first value in parentheses indicates a VOB number.
  • the controller 6 increases a value of the map number [M] by one, and the controller 6 goes to step S 24 .
  • the controller 6 detects whether following cells exist or not. In this case, since there is a following cell- 2 (step S 24 : YES), the controller 6 returns to the step S 22 .
  • the controller 6 registers the maps corresponding to respective cells constituting the play list- 1 in the above described step S 22 through step S 24 .
  • the controller 6 registers the following maps for the play list- 1 and the play list- 2 shown in FIG. 7 .
  • step S 25 the controller 6 goes to step S 26 and sorts out the registered plural maps in an order of the VOB numbers.
  • the controller 6 confirms the number of the maps, which are sorted out in the order of the VOB numbers in the step S 27 .
  • the controller 6 terminates the map producing operation and returns to the step S 12 of the automatic edit mode operational program shown in FIG. 8 .
  • the controller 6 carries out initial setting, which is necessary for carrying out the automatic edit from the VOB 1 in the step S 21 , and the controller 6 goes to the step S 13 so as to execute the table producing operational program shown in FIG. 10 .
  • step S 30 the controller 6 starts reading out maps from the designated VOB, namely, from the map 0 corresponding to the VOB 1 .
  • step S 31 the controller 6 defines the start time of the read out map, namely, the start time of the MAP [0] as “x” and defines the end time of the map M as “y”. Then, the controller 6 compares the read out map with the table, which has been already registered, in step S 32 . Since there is no registered table at this point (step S 32 : NO), the controller 6 goes to step S 33 .
  • step S 33 the controller 6 registers the above “x” and “y” as a new table.
  • This new table is described as a table- 11 (A, B).
  • the controller 6 decides whether it should compare this table with a next map in step S 34 or not. Since the next map, namely, the MAP [2] exists (step S 34 ; YES), the controller 6 returns to the step S 31 .
  • step S 31 the controller 6 sets the start time E of the MAP [2] to x and sets the end time F of the MAP [2] to y. Then, the controller 6 decides whether it should compare the MAP [2] with a next registered table in the step S 32 or not. As described above, since the table- 11 (A, B) is registered in the step S 33 (step S 32 : YES), the controller 6 goes to step S 36 in order to compare this table- 11 (A, B) with the MAP [2].
  • step S 36 the controller 6 sets the start time A of the table- 11 (A, B), which is registered, as “v”, sets the end time B to “w” and goes to step S 37 .
  • Steps S 37 to step S 42 serve to compare the start time and the end time of the table, which has been already registered, with the start time and the end time of a map to be newly registered. This comparative processing will be described with reference to FIG. 11 below.
  • FIGS. 11A to 11F are diagrams showing the combinations to compare a registered table (v, w) with a new map (x, y) in time, and there are six combinations shown.
  • FIG. 11A shows a state that the new map (x, y) is placed behind the registered table (v, w) in time, and this relationship is detected in the step S 37 .
  • the new map (x, y) has no relationship to the registered table in time, so that the new map (x, y) is compared with a next registered table.
  • FIG. 11B shows a state that a rear part of the registered table (v, w) and a front part of the new map (x, y) are overlapped each other in time.
  • This state is detected in step S 38 .
  • the start time v of the registered table (v, w) is assigned in this start time x and then, the new map (x, y) is compared with the next registered table. Additionally, since the registered table (v, w) is taken into the new map (x, y), the registered table (v, w) is erased from the table.
  • FIG. 11C shows a state that all elements of the registered table (v, w) are included in the new map (x, y), and this state is detected in step S 39 .
  • the registered table (v, w) is overlapped with the new map (x, y), so that the registered table (v, w) is erased and the new map (x, y) is compared with a next registered table.
  • FIG. 11D shows a state that a front part of the registered table (v, w) and a rear part of the new map (x, y) are overlapped each other in time.
  • This state is detected in step S 40 .
  • the end time w of the registered table (v, w) is assigned in the end time y, and then the new map (x, y) is compared with the next registered table. Additionally, since the registered table (v, w) is taken into the new map (x, y), the registered table (v, w) is erased from the table.
  • FIG. 11E shows a state that the new map (x, y) is placed in front of the registered table (v, w) in time and this state is detected in the step S 41 .
  • the new map (x, y) has no relationship to the registered table in time, so that the new map (x, y) is compared with a next registered table.
  • FIG. 11F shows a state that all elements of the new map (x, y) are included in the registered table (v, w) and this state is not identical with any one of the above described states.
  • the new map (x, y) is neither compared with a next registered table and nor registered as a table.
  • the relationship between (A, B) and (E, F) namely, the relationship between (v, w) and (x, y) satisfies the condition “v ⁇ w ⁇ x ⁇ y” shown in FIG. 11A (step S 37 : YES), so that the controller 6 goes to the step S 32 , and decides whether (x, y) should be compared with a next registered table or not.
  • step S 32 NO
  • the controller 6 registers this (x, y), namely, (E, F) as a new table- 12 (E, F) in the step S 33 .
  • step S 34 the controller 6 decides whether (x, y) should be compared with a next registered table or not in the step S 34 . Since a next map, namely, MAP [3] exists (step S 34 : YES), the controller 6 returns to the step S 31 .
  • step S 31 the controller 6 sets the start time G of MAP [3] to “x” and sets the end time H of MAP [3] to “y”. Then, the controller 6 decides whether (x, y) should be compared with a next registered table or not in the step S 32 .
  • the relationship between (A, B) and (G, H) namely, the relationship between (v, w) and (x, y) satisfies a condition “v ⁇ x ⁇ w ⁇ y” shown in FIG.
  • step S 38 YES
  • step S 43 the controller 6 assigns the start time v of the registered table- 11 (v, w) in the start time x, erases the table- 11 (v, w) and goes to the step S 32 .
  • the controller 6 decides whether (x, y) should be compared with a next registered table or not again in the step S 32 .
  • step S 41 the controller 6 decides whether (x, y) should be compared with a next registered table or not again. In this case, there is no further registered table which is not compared with (x, y) (step S 32 : NO), so that the controller 6 registers this (x, y), namely, (E, F) as a table- 13 (E, F) in the step S 33 .
  • the table- 11 (A, b) does not exist, since it is erased in the step S 43 .
  • the controller 6 decides whether (x, y) should be compared with a next registered table or not in the step S 34 . In this case, there is no further map to be compared with (step S 34 : NO), so that the controller 6 terminates the registration of the table in an effective segment of the designated VOB 1 and returns to the step S 14 shown in FIG. 8 .
  • the controller 6 reads out a table with respect to the effective segment of the designated VOB 1 , which has been registered in advance, and calculates remaining unnecessary segments (namely, hatched portions shown in FIG. 12 ).
  • the steps S 13 and S 14 constitute the unnecessary segment detecting process.
  • the controller 6 edits the original reproduction control information so as to erase the unnecessary segment from the video information VOB 1 in the step S 15 . Therefore, this step S 15 constitutes the unnecessary segment erasing process according to the present invention.
  • the controller 6 decides whether it should edit a next VOB in the step S 16 or not.
  • the VOB 2 still exists (step S 16 : YES), so that the controller 6 returns to the step S 13 and repeats the above described operation. Since it has been already described above, a simple explanation will be given below.
  • the controller 6 produces a table- 11 (C, D) from the play list- 2 in the step S 13 , reads out this table- 11 in the step S 14 , and calculates the remaining unnecessary segment (namely, hatched portions shown in FIG. 12 ).
  • the controller 6 edits the original reproduction control information so as to erase the unnecessary segment from the video information VOB 2 in the step S 15 . Further, if the controller 6 decides that there is no next VOB in the step S 16 (step 16 : NO), it terminates the above described automatic edit mode operational program.
  • the present invention is not limited to the above described embodiment.
  • the present invention is constituted in such a manner that, if the edit operation is finished in the automatic edit mode operation, the unnecessary video information not to be referred to by any play list is automatically erased.
  • an unnecessary picture erasing key may be provided to the operational unit 13 so that the user is capable of erasing the unnecessary video information by one-touch operation at arbitrary timing or this automatic erasing operation may be carried out just before the recording medium is ejected.
  • the information recording/reproducing apparatus 50 includes an apparatus which records the video information in the optical disk 1 , however, the information recording/reproducing apparatus 50 may be an apparatus which only records the audio information.
  • a DVD-RW is used as a recording medium.
  • the present invention may also be applied to other optical disk such as a DVD-RAM or the like as a matter of course and further, it may also be applied to a recording/reproducing apparatus which records and reproduces the recording information in various kinds of recording media such as a hard disk and a semiconductor memory or the like.
  • FIG. 13 by recording a control program corresponding to the flowcharts shown in FIG. 4 and FIGS. 8 to 10 in a flexible disk 90 and an optical disk 90 or a hard disk 91 or the like serving as an information recording medium.
  • a personal computer 95 or the like By reading out this program by a personal computer 95 or the like to execute it, it is also possible to function a CPU of the computer as the above described controller 6 and function a computer provided with a disk drive such as a DVD-ROM drive apparatus or the like as the above described information recording/reproducing apparatus 50 .
  • the present invention it is possible to accurately and quickly erase, from the recording medium, the unnecessary portion of the recording information that is not to be reproduced in accordance with the play list designated by the user.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
US09/987,058 2000-11-13 2001-11-13 Information recording/reproducing apparatus for editing data on a recording medium Expired - Fee Related US6973012B2 (en)

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JP2000344607A JP2002150503A (ja) 2000-11-13 2000-11-13 情報記録再生装置、および情報記録媒体
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JP2002150503A (ja) 2002-05-24
EP1205931B1 (de) 2004-08-11

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